Datasheet Texas Instruments LM34927SDX/NOPB
| Manufacturer | Texas Instruments |
| Series | LM34927 |
| Part Number | LM34927SDX/NOPB |
7.5-100V Wide Vin, 600mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters 8-WSON
Datasheets
LM34927 Integrated Secondary-Side Bias Regulator for Isolated DC-DC Converters datasheet
PDF, 3.0 Mb, Revision: G, File published: Dec 9, 2014
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Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Packaging
| Pin | 8 |
| Package Type | NGU |
| Industry STD Term | WSON |
| JEDEC Code | S-PDSO-N |
| Package QTY | 4500 |
| Carrier | LARGE T&R |
| Device Marking | L34927 |
| Width (mm) | 4 |
| Length (mm) | 4 |
| Thickness (mm) | .8 |
| Pitch (mm) | .8 |
| Max Height (mm) | .8 |
| Mechanical Data | Download |
Parametrics
| Iout | 0.6 A |
| Package Group | WSON |
| Package Size: mm2:W x L | See datasheet (WSON) PKG |
| Rating | Catalog |
| Soft Start | None |
| Special Features | Adjustable UVLO,Enable |
| Switching Frequency(Max) | 1000 kHz |
| Switching Frequency(Min) | 150 kHz |
| Topology | Flybuck |
| Type | Converter (Integrated Switch) |
| Vin(Max) | 100 V |
| Vin(Min) | 9 V |
| Vout(Max) | 90 V |
| Vout(Min) | 1.225 V |
Eco Plan
| RoHS | Compliant |
Design Kits & Evaluation Modules
- Evaluation Modules & Boards: LM34927EVAL
Evaluation Board for the LM34927
Lifecycle Status: Active (Recommended for new designs)
Application Notes
- Fly-Buck(TM) converter provides EMC and isolation in PLC applicationsPDF, 201 Kb, File published: Jan 29, 2015
- AN-2202 LM34927 Integrated Bias Regulator for Isolated DC Convtr (Rev. A)PDF, 1.2 Mb, Revision: A, File published: Apr 23, 2013
An isolated bias supply is implemented in this evaluation board with LM34927 Constant-On-Timeregulator. The LM34927 regulator integrates both the high and low side power switches essential forcreating isolated buck converter.The board specifications are as follows:Input Range: 20 V to 100 VPrimary Output Voltage: 10 VSecondary (Isolated) Output Voltage: 9.5 - AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C)PDF, 870 Kb, Revision: C, File published: Dec 17, 2014
In many applications, one or more low-cost, simple to use, isolated power supplies working from input voltages up to 100 V are needed. Traditional solutions use flyback converters to generate this bias supply. Flyback designs typically utilize asymmetric transformers turns ratios for primary and secondary power windings, with an optocoupler and reference, or an auxiliary winding for feedback regul
Model Line
Series: LM34927 (4)
- LM34927MR/NOPB LM34927MRX/NOPB LM34927SD/NOPB LM34927SDX/NOPB
Manufacturer's Classification
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Isolated DC/DC Converter
